“…Diagnostic workup includes CBC with peripheral smear, flow-cytometry, tumor markers, bone marrow aspirate and trephine biopsy, lymph node biopsy, CXR, CT chest, and echocardiography imaging studies. 2 , 6 During sedation, particularly before intubation, it is important to remember that anesthesia may lead to increase venous capacitance, decreasing preload that would in turn acutely reduce cardiac output and may lead to hypotension and cardiac arrest. In addition, SVC occlusion and pulmonary artery compression may lead to cardiovascular collapse with a substantial risk of death.…”